Hi again Patty
Hey...you could try to paint the OUTSIDE of frame like you are suggesting... certainly will last for a few...BUT, won't last long before begins to chip
especially at the edges where old meets the new. Eventually, will break down all together and will not look good.
Home depot sells a great quality kohler tub/shower door in
chrome for only about $200.00 if you pick it up yourself (they sell online for $240ish including shipping!!). Check out this link....frameless design means install is quite easy:
KOHLER Fluence(R) Frameless Bypass Bath Door, Bright Polished Silver - 702200-L-SHP at The Home Depot
Now...I hate to see you spend $200....BUT, sandpaper, primer and paint and brushes and all the time you will take to prep and paint this thing and still not have a perfect job in the end concerns me is all!!
Go chrome if you do this...seems to resolve the issue of almond inside tub and white outside tub...???
Let me know what you think...Mark